Remove dependency on Selectors and refactor codebase.

Change-Id: Ic3024b76ba0eea61f790c91c36090b4aa68702a3
Refs: #4522
diff --git a/src/handles/read-handle.hpp b/src/handles/read-handle.hpp
index a243abd..bdd6b6f 100644
--- a/src/handles/read-handle.hpp
+++ b/src/handles/read-handle.hpp
@@ -54,7 +54,7 @@
   }
 
   /**
-   * @param after Do something after actually removing a prefix
+   * @param name Full name of the deleted Data
    */
   void
   onDataDeleted(const Name& name);